OMFG TEH IDEA ISUXXZORZ OMFG U R NUB !!!
Seriously, flaming is NEVER welcome XD
Sounds like a cool idea, good luck on it.
I have one idea though, why not make food a reasource like gold, that perhaps could be mined example:
Ok so you have your farm, the farm spawns some sort of vegetable all around it.
Peasants/workers can then go an harvest the food, and return it to the farm, producing reasource.
Farms make the food reasource on theyre own, but the rate of production is rather slow, especcialy so in the winter, where harvestable crops will stop spawning, meaning its wise to save up for winter time during the summer harvest, just like in real life.
just my 2 cents tho.
Edit: oh, right and it makes it so you can have unlimited men, and thats always great.
2nd edit: perhaps making blacksmiths should increase the war effort a bit more than Farms do, same goes for barracks'es. I mean, sure make farms have a role in it, but a small one, that way we don't lose track of theyre primary purpose: food.
One last thing: you should make certain units not need generals to function, like partisans or elite guard, who have the brains to take the orders directly comming from you, that way you would have some troops you have complete control over, and therefore makes them stand out from the average joe footman under the command of General Whats-his-name. Would be awesome for ranger units too.